In March of this year, we announced  that beginning September 30, 2021, we will end support for the legacy v2.0 of the Content API for Shopping . We also recommended you migrate to using v2.1, which has been available since March 2019. less than 1 month until support for v2.0 will end on September 30, 2021 . Following this date, the legacy v2.0 of the Content API is no longer guaranteed to function. We will continue to provide support for your efforts to migrate to v2.1. To avoid disruption we strongly encourage you to migrate to v2.1 imminently. What do I need to know? multi-client account (MCA)  to make changes to sub-accounts, you should also check your API usage for that account. Please note that all API usage from Content API for Shopping v2.0, is no longer guaranteed to function after September 30, 2021 .Where do I get support? migration guide  to help you migrate your implementation including all the changes and new features available in v2.1 .Inventory.set method, see the release of partial product updates .update of the default runtime to v2.1 .Content API for Shopping forum .